Home / 18,904.12-28,323.27-13,269.83

Finding the Fourth Proportional to 18,904.12, 28,323.27 and 13,269.83

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Solution

The fourth proportional to 18,904.12, 28,323.27 and 13,269.83 is: 19,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.12 : 28,323.27 = 13,269.83 : x
  2. Step 2: Convert to fraction form
    18,904.12/28,323.27 = 13,269.83/x
  3. Step 3: Cross multiply
    18,904.12x = 28,323.27 × 13,269.83
  4. Step 4: Simplify right side
    18,904.12x = 375,844,836.33
  5. Step 5: Solve for x
    x = 375,844,836.33/18,904.12
  6. Step 6: Final answer
    x = 19,881.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.